Doctor profile · Federal record
Dr. Gerald Nazareno, MD
Emergency Medicine Physician (CMS: Emergency Medicine) · Pleasanton, CA
- NPI 1679564983
- Accepts Medicare
- MIPS 100.0 / 100 · 2023
- 39 yrs in practice
- Male
- No sanctions
Practice & contact
- Primary practice
-
5555 W Las Positas Blvd
Pleasanton, CA 945884000
(209) 342-2300
fax (209) 524-4240 - Mailing address
-
4301 Northstar Way
Modesto, CA 953569262
Credentials & registration
- NPI registered
- November 2005 — 21 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 1987 — 39 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- California #A53590
- Medicaid
- CA #00A535900
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1679564983. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
288
Distinct HCPCS
3
Medicare allowed
$44,399
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 192 | 184 | $151 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 57 | 57 | $195 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 39 | 39 | $108 |
In context: peer comparison
Among 10 peers in Pleasanton Emergency Medicine Physician, average services per provider: 93. This provider delivers 3.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
202
Patients
198
Total drug cost
$1,754
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cefadroxil | Generic | 51 | 48 | $400 |
| Tramadol Hcl | Generic | 31 | 31 | $85 |
| Methylprednisolone | Generic | 23 | 23 | $227 |
| Azithromycin | Generic | 20 | 20 | $103 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 15 | 15 | $160 |
| Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) | Brand | 14 | 14 | $172 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 13 | 12 | $386 |
| Meloxicam | Generic | 13 | 13 | $42 |
| Levofloxacin | Generic | 11 | 11 | $64 |
| Paxlovid (Eua) (Nirmatrelvir/Ritonavir) | Brand | 11 | 11 | $115 |
Frequently asked questions
What is Dr. Gerald Nazareno's medical specialty?
Dr. Gerald Nazareno practices Emergency Medicine Physician in Pleasanton, CA.
Where does Dr. Gerald Nazareno practice?
Dr. Gerald Nazareno practices at 5555 W Las Positas Blvd, Pleasanton, CA 945884000. Office phone: 2093422300.
What is Dr. Gerald Nazareno's NPI?
Dr. Gerald Nazareno's National Provider Identifier (NPI) is 1679564983, issued by NPPES.
Does Dr. Gerald Nazareno accept Medicare assignment?
Yes. Dr. Gerald Nazareno accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gerald Nazareno commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99204); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.